The Secretary General of the Organization of Islamic Cooperation Ekmeleddin Ihsanoglu on Thursday condemned the assassination of Iranian Physics professor Mostafa Ahmadi-Roshan. He expressed concern over the terrorist action and said assassination of scientists will bear no fruits. The Secretary General said Iran has a natural and legal right to produce nuclear energy and has to use it overtly and also construct its own nuclear reactors based on international laws. Pointed to Zionist regime’s nuclear activities, Ihsanoglu said that regime’s refusal to let international observers inspect its nuclear activities is not acceptable. Iranian Physics professor Mostafa Ahmadi-Roshani and three others were targeted in a terrorist operation blowing up a magnetic bomb attached to the vehicle. The explosion took place after a motorcyclist stuck a bomb on the side of the car, a Peugeot 405, in Ketabi square in eastern Tehran, on Wednesday morning. A security official told IRNA that the incident looked like previous terrorist attacks on nuclear scientists by agents of the Zionist regime.